| Year | National / Delaware Standards | WPPE Corridor | Status | Source / Verification |
|---|---|---|---|---|
| PRE-MUTCD ERA | ||||
| 1954 | No uniform national standard for school zone traffic controls. State and local practice varies widely. Manual on Uniform Traffic Control Devices (3rd ed., 1948) exists but school-specific provisions are minimal. | WPPE opens. Three guarded crosswalks on West Park Place documented by neighborhood residents. School zone physically protected from the start. | Protected | ORAL Neighbor testimony only — no written record found. Crossing guard box at Apple/WPP is physical corroboration. Verify: newspaper archives, old photos, property records. |
| 1961 | MUTCD 4th edition — school signing provisions expanded. Fluorescent yellow introduced (not yet standard for school signs). | Controls status unknown. Three guarded crosswalks likely still in place based on resident testimony. | Unknown | UNVERIFIED MUTCD edition numbering uncertain. Verify FHWA archive. Controls status: no source. |
| MUTCD STANDARDIZATION ERA | ||||
| 1971 | MUTCD 1st uniform federal edition — school signs standardized nationally for the first time. S1-1 School sign established. Fluorescent yellow-green not yet standard. | Controls status unknown. SR 2 still routes through downtown Newark — WPPE not yet on a primary arterial. | Unknown | SOURCED 1971 federal MUTCD is documented (FHWA). SR 2 routing can be confirmed via DelDOT road records. |
| 1978 | MUTCD 3rd edition — school crossing assembly requirements refined. Advance warning standards strengthened. | Controls status unknown. | Unknown | UNVERIFIED Edition number needs confirmation. Verify FHWA MUTCD archive. No WPPE source. |
| 1983 | MUTCD 4th edition — school area provisions further developed. Gap study methodology referenced for the first time. | Controls status unknown. | Unknown | UNVERIFIED Edition number uncertain. "Gap study first referenced" is a specific claim — needs FHWA primary source. |
| THE ARTERIAL SHIFT — WPPE EXPOSED | ||||
| 1988 | MUTCD 4th edition in effect. Fluorescent yellow-green color introduced experimentally for school signs — not yet mandatory. | Regression event. SR 2 realigned to Elkton Road to solve pedestrian conflicts near UD campus. WPPE corridor becomes a principal arterial. 10.8% truck traffic. The pedestrian/arterial conflict is moved from downtown to the school block. Prior controls designed for a residential street are now on an arterial. | Exposed | INDIRECT SR 2 realignment cause: referenced in 2009 Option B and RK&K 2023 — primary decision record not confirmed. 10.8% truck traffic: identify source year and document. HIGH RISK if wrong. Stated cause ("UD pedestrian conflicts") needs primary document. |
| 1988 | MUTCD provisions require advance warning signs and school crossing assemblies on arterials — stronger requirements than residential streets. | No documented upgrade to WPPE controls following the SR 2 realignment. The arterial designation that triggers stronger MUTCD requirements goes unaddressed. | Gap opens | SOURCED Derived from MUTCD Part 7 provisions — directly citable. Absence of upgrade is asserted; no contrary record found. |
| MUTCD STRENGTHENING — WPPE FALLING FURTHER BEHIND | ||||
| 1993 | MUTCD 6th edition — fluorescent yellow-green (FYG) officially approved for school warning signs. Significant visibility improvement over standard yellow. | No FYG signs installed at WPPE. Any existing school signs are non-compliant with new color standard. | Non-compliant | UNVERIFIED Edition number and year need confirmation. FYG approval widely cited as 1993 — verify FHWA. No WPPE sign record exists. |
| 1996 | MUTCD 6th edition in effect. | Netsim traffic model of western Newark commissioned by City and DelDOT. Truck routing through WPPE corridor formally documented for the first time. Recommendations made but not implemented. Casho Mill bike/pedestrian tunnel implemented based on 1996 plan — but no school safety infrastructure at WPPE. | Studied, no action | INDIRECT Netsim referenced in 2009 Option B — primary 1996 document not in hand. FOIA City of Newark + DelDOT. Casho Mill tunnel source unclear. |
| 2000 | MUTCD 9th edition — school crossing warrant criteria revised. School route plan requirements strengthened. | City Council motion — formal request to DelDOT to remove interstate trucks from the WPPE traffic flow pattern. Never fulfilled. Neighborhood Schools Act passes — walk-to-school mandate created for Newark schools including WPPE. No corresponding infrastructure investment. | Request ignored | INDIRECT Council motion: FOIA council minutes — resolution number needed. Neighborhood Schools Act: confirm DE statutory citation. MUTCD edition number uncertain. |
| ~2000–2005 | MUTCD provisions require school crossing guards where gap studies show inadequate gaps. | Regression event. Crossing guards removed from West Park Place. Crossing guard box remains at Apple Road / WPP intersection — unused. Exact date and decision-maker not yet documented. | Guards removed | SELF-DISCLOSED Table acknowledges undocumented. Guard box is physical evidence. Need: Christina SD guard records, Traffic Committee minutes, dated neighbor testimony. Do not state a year until confirmed. |
| 2003 | MUTCD 10th edition — school area provisions comprehensively revised. FYG mandatory for school warning signs. School crossing signal warrant refined. | No documented compliance review at WPPE following 10th edition. No FYG signs. No crosswalk markings. No zone designation. | Non-compliant | UNVERIFIED "10th edition" and "FYG mandatory" — verify edition number/year. "Mandatory" vs "recommended" is legally significant. |
| DELAWARE MUTCD ERA — STATE STANDARDS STRENGTHEN | ||||
| 2009 | MUTCD 10th ed. Rev 1 in effect. Delaware begins developing state-specific MUTCD supplement. | DelDOT/WILMAPCO Option B analysis — truck diversion via Apple Road studied and rejected. LOS F projected at Apple/Elkton by 2024. No alternative proposed. No WPPE school safety controls addressed in the study. | Studied, rejected | INDIRECT Option B report referenced but not in hand. FOIA DelDOT/WILMAPCO for primary document. "LOS F by 2024" is specific — confirm exact language. Must obtain before citing. |
| 2011 | Delaware MUTCD Rev 1 — Delaware adopts 2009 federal MUTCD with state-specific additions. DE 7A.04 Standard: Part 7 shall be followed where special pedestrian conditions exist. 20 mph school zone speed is state law (Title 21 §4169). | No school zone designation for WPPE under Title 21 §4169. DE MUTCD Standard obligation exists but trigger never pulled. Elkton Road Phase 1 reconstruction begins (Casho Mill to Delaware Ave) — road diet, bike lanes, sidewalks. WPPE block not included. | Standard exists, unapplied | SOURCED DE MUTCD Rev 1 is public — citable. Title 21 §4169 on the books. Elkton Road Phase 1 in DelDOT project records. Confirm exact phase boundary (Casho Mill to Delaware Ave). |
| 2012–13 | DE MUTCD Rev 1 in effect. | Elkton Road Phase 1 reconstruction completed. Road diet 4→2 lanes. Renamed South Main Street. Phase 2 to Maryland border remains unfunded. WPPE block adjacent to reconstructed corridor — no school zone controls added during reconstruction. Signal warrant not studied at time of reconstruction. | Missed opportunity | INDIRECT "Road diet 4→2" and renaming — confirm via DelDOT project record. "Signal warrant not studied" is a negative claim — source? "Phase 2 unfunded" — confirm current status. |
| 2015 | DE MUTCD Rev 2. Stronger pedestrian provisions. | Formal pedestrian signal request filed with Newark Traffic Committee — Apple Road and West Park Place, June 16, 2015. Outcome unknown. No pedestrian signals installed. No other controls added. | Request, outcome unknown | INDIRECT "June 16, 2015" is very specific — a document exists. FOIA City of Newark Traffic Committee minutes for this request and any response. High-value document for the packet. |
| 2018 | Delaware MUTCD Revision 3 — current governing standard. Adds: DE-specific factors to indirect route feasibility test (crossing guard presence; unexpected pedestrian locations). Explicit gap study methodology reference. S3-1-DE "School Children Walk Along This Road" sign added. Flashing beacon warrant (7B.18) created. | No compliance review at WPPE following Revision 3. None of the new DE-specific provisions applied. No school zone designation. No crosswalks. No crossing guard. No bus stop sign. No flashing beacon assessment. | Non-compliant | SOURCED DE MUTCD Rev 3 (May 2018) is public — provisions directly verifiable. Absence of controls at WPPE supported by physical inspection and photographs. |
| RECENT HISTORY — STUDIED AND IGNORED | ||||
| 2021–22 | DE MUTCD Rev 3 in effect. Federal MUTCD 11th edition in development. | Downes Elementary SRTS project completed on Casho Mill Road (McCormick Taylor) — raised medians, pedestrian refuge islands, buffered bike lane, new crosswalks. Same road network, different school. WPPE receives nothing. | Comparable school protected | INDIRECT "McCormick Taylor" as contractor — confirm. Get SRTS plan or project closeout. Infrastructure details (raised medians, refuge islands) — confirm from site visit or drawings. Comparison to WPPE must be airtight. |
| 2022 | DE MUTCD Rev 3 in effect. | UD/City Action Plan formally recommends: "Create a Safe Routes to School for Newark High School and West Park Place Elementary School." Three years later — no SRTS plan for WPPE exists. | Recommended, not implemented | INDIRECT Exact quote is in quotation marks — need full document title, page number, date, institutional authors. Quote is central to the advocacy argument; cannot be approximate. |
| Feb 2023 | DE MUTCD Rev 3 in effect. Federal 11th edition in final review. | RK&K traffic study: 319 buses and trucks at Apple Road / West Park Place in 12 hours. DelDOT Chief of Traffic Engineering Peter Haag reviews WPP/Apple signal — finds it does not meet any of the nine MUTCD signal warrants. City manager admits signals were likely never warrant-studied when installed. No school safety controls reviewed or proposed at same time. | Studied, school ignored | INDIRECT 319 buses/trucks: RK&K report — confirm page. HIGH RISK if wrong. Peter Haag title: confirm "Chief of Traffic Engineering." "City manager admits": HIGH RISK — who said this, in what forum, where documented? Cannot appear in advocacy letters without primary source. |
| Dec 2023 | MUTCD 11th Edition published — strongest federal school safety provisions ever. RRFB officially included in Part 7. FYG mandatory. Updated crossing assembly standards. School Crossing signal warrant refined. Pedestrian hybrid beacon fully specified. | WPPE has no school zone designation, no crosswalks, no advance warning signs, no crossing guard, no bus stop sign, no speed limit, no pavement markings. Does not meet DE MUTCD 2018 (governing standard) let alone federal 11th edition. | Below every standard | SOURCED MUTCD 11th edition (Dec 2023) is a public FHWA document. Provisions directly verifiable. WPPE conditions — physical observation + photographs. |
| 2025 | DE MUTCD Rev 3 (May 2018) remains governing standard. Federal MUTCD 11th Edition (Dec 2023) published — FHWA set Jan 18, 2026 as state adoption deadline. Delaware publishes draft DE MUTCD 2026 (pending approval) — available at deldot.gov. | Mobile speed camera pre-approved for West Park Place corridor. No school zone controls. No crosswalks. No signs. No guard. BikeNewark identifies WPP as a priority corridor. UD/City SRTS recommendation from 2022 still unimplemented. | Still below floor | INDIRECT Speed camera pre-approved: City Council resolution — need date and number. BikeNewark WPP priority: confirm plan/report name. DE MUTCD 2026 draft: sourced — deldot.gov/Publications/manuals/de_mutcd/pdfs/DE%20MUTCD%202026.pdf (200 OK as of 2026-06-14). |
| 2026 — DEADLINE PASSED · DE MUTCD 2026 CONFIRMED · STANDARD REGRESSES IN KEY AREAS | ||||
| Jan 18, 2026 | FHWA adoption deadline passed. States were required to adopt MUTCD 11th Edition by this date or formally request an extension. Delaware's 2026 MUTCD is labeled PENDING APPROVAL on the deldot.gov MUTCD index page (primary source, verified 2026-06-14) — not formally adopted, no effective date published, no adoption notice in Delaware Register of Regulations. Rev 3 (2018) continues as the governing Delaware standard. RRFB and PHB available under federal 11th Ed. by default argument. | WPPE still has no school zone designation, no crosswalks, no advance warning signs, no crossing guard, no speed limit, no pavement markings — as confirmed by physical site conditions. The standard change did not trigger any WPPE compliance review. | Deadline passed | SOURCED Primary source: deldot.gov MUTCD index labels the 2026 document as "PENDING APPROVAL" (verified 2026-06-14). Delaware Register of Regulations has adoption notices for 2011/Rev1/Rev2/Rev3 — none for 2026. No formal adoption notice found. FOIA still needed: any extension request filed with FHWA, and any compliance correspondence between FHWA and DelDOT. |
| 2026 (current) |
DE MUTCD 2026 published. Confirmed structure: still uses 2009-era base — does NOT adopt federal 11th Ed. (Dec 2023) structure. Key changes vs. Rev 3 (2018): (1) Removes DE-specific Factors E (crossing guard presence) and F (unexpected pedestrian location) from walk route feasibility test — pedestrian safety floor weakened. (2) Removes DE-specific sign codes S3-1-DE, S5-1-DE, S5-3-DE — reverts to federal codes. (3) Removes 7B.18 flashing beacon warrant section (40 ped/hr threshold). (4) Removes §4169 (Title 21) speed provisions from Part 7 text. (5) Adds 500-foot maximum school zone advance distance (was no max in Rev 3). (6) Adds Vehicle Speed Feedback sign option (W13-20aP). New FHWA compliance deadline: September 6, 2026 — retroreflectivity of longitudinal pavement markings. | WPPE conditions as of June 2026: no school zone, no crosswalks, no signs, no crossing guard — non-compliant under any governing standard. The 2026 DE MUTCD regression in Factors E & F removes two advocacy tools that had been available under Rev 3. If 2026 is adopted: the "crossing guard presence" factor can no longer be cited in the indirect route feasibility argument. | Standards regress | SOURCED DE MUTCD 2026 confirmed in repo (files/de-mutcd-2026.pdf) and added to NLM. Compared via pdftotext extraction. Section 7A.02 ¶09, Table 7B-1, and 7B.05 directly verified from de-mutcd-2026.txt. This row updated 2026-06-14. |
| RAIL EQUITY — GRADE CROSSINGS ON SCHOOL ROUTES | ||||
| 2012 (Rev 1, Dec 2012) |
DE MUTCD Part 8 (Railroad & LRT Grade Crossings) — current governing standard. Last revised December 2012 (Rev 1). Key DE Revisions: §06A: installation/maintenance of grade crossing signs/signals requires specific authorization. §08A: same for LRT grade crossings. §04 (DE Revision): traffic control signals at rail crossings — Delaware Code Title 21 §4163: school buses carrying students NOT required to stop at highway-rail grade crossings controlled by traffic signals (unlike federal CMV rules). Federal rule (49 CFR §392.10) requires most CMVs to stop, but DE exempts school buses at signalized crossings. | If any WPPE school walk route crosses a railroad or LRT grade crossing, Part 8 governs warning devices there. The 2012 Rev 1 standard has not been updated in 14 years. Preemption requirements (§8D.09–12) — signal priority for trains at intersections within 200 feet of grade crossings — have a 10-year compliance deadline from January 2026, i.e., January 2036. | Rail law applies | SOURCED DE MUTCD Part 8 (Rev 1, Dec 2012) confirmed in repo (files/de-mutcd-part8-railroad.pdf). §06A, §08A, Title 21 §4163 (DE Revision) confirmed from de-mutcd-part8-railroad.txt. Federal 49 CFR §392.10 reference confirmed line 1235. |
| 2026 Jan 2036 deadline |
Rail / signal preemption assessment deadline. DE MUTCD 2026 Table 1B-1 (§8D.09–12): all signalized intersections within 200 feet of a railroad grade crossing must be assessed for appropriate treatment (preemption, movement prohibition, pre-signals, queue cutter signals). 10-year compliance window from January 2026 effective date = January 2036. | If any WPPE or NCS school bus route passes through a signalized intersection within 200 feet of a rail grade crossing, that intersection is now on a 10-year compliance clock. Newark, DE has the NEC (Amtrak/SEPTA) running through it — grade crossings near signalized intersections are possible. Title 21 §4163 means school buses can pass without stopping at signalized rail crossings — but signal preemption protects them by clearing the intersection before a train arrives. | Deadline identified | SOURCED DE MUTCD 2026 Table 1B-1 §8D.09–12 confirmed from de-mutcd-2026.txt line 4451. Effective date January 2026. FOIA target: DelDOT signal preemption assessment status for Newark, DE grade crossings. |
| Year | Intervention | Type | Outcome | Source needed |
|---|---|---|---|---|
| 1996 | Netsim traffic model of western Newark | Engineering study | Recommendations not implemented | Original report not in hand — FOIA City of Newark + DelDOT |
| 2000 | City Council motion to remove interstate trucks | Formal government request | Never fulfilled | FOIA council minutes — resolution number needed |
| 2009 | DelDOT Option B truck diversion analysis | Engineering study | Rejected — no alternative proposed | Report not in hand — FOIA DelDOT/WILMAPCO |
| 2015 | Pedestrian signal request — Traffic Committee | Formal safety request | Outcome unknown — no signals installed | FOIA Traffic Committee minutes, June 16, 2015 |
| 2022 | UD/City Action Plan SRTS recommendation | Institutional recommendation | Not implemented after 3 years | Need full document title and page number |
| 2023 | Signal warrant review; RK&K traffic count | Engineering review + traffic data | School safety not addressed in either | RK&K report page; Haag title and forum for "city manager admits" claim |
| Date / Trigger | Event / Requirement | Source document | WPPE relevance | Action / FOIA target |
|---|---|---|---|---|
| Jan 18, 2026 (PAST — verify status) |
FHWA state adoption deadline for MUTCD 11th Edition. Delaware must adopt or request extension. | MUTCD 11th Ed. (Dec 2023) — FHWA Final Rule preamble. DE draft "DE MUTCD 2026" published at deldot.gov. | If adopted: RRFB, PHB, updated school zone standards become mandatory floor for DE. If not: Rev 3 2018 continues. Either way, WPPE is non-compliant under both. | FOIA DelDOT: adoption notice, extension request, or rulemaking record. Check Delaware Register of Regulations 2025–2026. |
| Ongoing School years |
DE MUTCD Rev 3 §7B.18: Flashing beacon warranted when ≥40 school pedestrians use crossing during each of any 2 hours. Warrant is assessed annually or upon petition. | DE MUTCD Rev 3, May 2018 — §7B.18 §02 (DE Revision). Confirmed from deldot-mutcd-part7-school.txt. |
WPPE community pedestrian count at WPPE during school arrival/dismissal can create a documented warrant application. 40/hr threshold is quantifiable. | Conduct pedestrian count during two peak hours (arrival + dismissal). Submit to DelDOT Traffic as formal warrant application with count data attached. |
| Ongoing Gap study trigger |
DE MUTCD §7A.03: When gap frequency becomes "excessive," creation of sufficient gaps "needs to be considered." No explicit date — triggered by documented conditions. | DE MUTCD Rev 3 §7A.03 §01–02. Confirmed from deldot-mutcd-part7-school.txt. Methodology: Traffic Control Devices Handbook (referenced in §7A.03 §02). |
Platoon release from Elkton/Park Place signal suppresses actual gap frequency. A documented gap study is the predicate for the signal warrant (4C.06) and the crossing assembly obligation. | Commission gap study. FOIA DelDOT for any existing gap studies on Park Place / Elkton Rd. segment. |
| No deadline set OPEN |
School route plan and school traffic control plan (DE MUTCD §7A.01 §06, §09): "should be prepared" — Guidance level, no enforcement deadline. Absence is documented non-compliance with Guidance. | DE MUTCD Rev 3 §7A.01 §06, §09. Confirmed from deldot-mutcd-part7-school.txt. |
No school route plan exists for WPPE (confirmed via absence of any such document in FOIA responses). This is a FOIA-able gap: request any existing plan from Christina SD, City of Newark, and DelDOT. | FOIA all three agencies for school route plan and school traffic control plan for WPPE. Absence is the evidence. |
| No deadline set OPEN |
§4169 speed zone designation: engineering study required before 20 mph zone can be established. No statutory deadline — jurisdiction initiates on its own timeline. | DE MUTCD Rev 3 §7A.01 §10C (DE Revision): "on the basis of engineering study or investigation a maximum speed limit greater or less than 20 mph may be established by [DelDOT]." Confirmed from deldot-mutcd-part7-school.txt. |
No engineering study has been documented for WPPE speed zone. Engineering study is the jurisdictional gate that DelDOT must open. Requesting it is a concrete, documentable ask. | Formally petition DelDOT for engineering study under Title 21 §4169. Any denial is a paper record. |
| Pending DE rulemaking |
DE MUTCD 2026 formal adoption. Draft text confirmed on file (32MB PDF, deldot.gov, HTTP 200 as of 2026-06-14). Confirmed structure: uses 2009/2011 DE Rev 1 base — NOT the federal 11th Ed. 2023 base. Part 7 section numbering matches 2009 structure, not 11th Ed. | File: files/de-mutcd-2026.pdf (in repo as of 2026-06-14). Added to NLM. Table 1B-1 (Target Compliance Dates) confirmed on pages 5–6 of 2026 doc. |
ADVOCACY RISK: DE 2026 REMOVES the two DE-specific Factors E (crossing guard) and F (unexpected location) from the walk route feasibility test (7A.02 ¶09). Rev 3 had A–F; 2026 has only A–D. This weakens the pedestrian safety standard. Also removes S3-1-DE, S5-1-DE, S5-3-DE sign codes. Removes 7B.18 flashing beacon warrant section. Removes §4169 speed provisions from Part 7. | Diff de-mutcd-2026.txt vs deldot-mutcd-part7-school.txt for full Part 7 comparison. FOIA for adoption rulemaking number. If adopted, Factors E & F loss is an immediate advocacy argument — cite the regression from Rev 3. |
| Sep 6, 2026 ~84 days away |
FHWA compliance deadline: retroreflectivity of longitudinal pavement markings. Table 1B-1 (§3A.05): agencies must implement and maintain a method designed to maintain retroreflectivity of longitudinal pavement markings by this date. Mandatory Standard. | DE MUTCD 2026, Table 1B-1, page 5–6. Section 3A.05. Confirmed from de-mutcd-2026.txt line 4451. |
Any pavement markings at WPPE — school word markings, crosswalk markings, stop lines — must meet this retroreflectivity maintenance standard. No WPPE markings exist, so compliance is moot, but this deadline is the hook for demanding that newly installed markings meet the standard. | When requesting crosswalk markings or SCHOOL word markings, cite §3A.05 and Sep 6, 2026 as the compliance date. Any marking installed after this date must meet maintained retroreflectivity requirements. |
| ~Jan 2031 5 yrs from effective date |
FHWA compliance deadline: High-Profile Grade Crossings (§8B.16). Table 1B-1: recommended installation of Low Ground Clearance and/or Vehicle Exclusion signs and detour signs at locations with known history of vehicles hanging up on high-profile grade crossings. Guidance level, 5-year window. | DE MUTCD 2026, Table 1B-1, §8B.16. Confirmed from de-mutcd-2026.txt. Effective date = January 2026 → compliance by ~January 2031. |
Rail-specific. Relevant if school walk routes cross high-profile railroad grade crossings in the Newark, DE corridor (NEC / CSX). Low ground clearance signs protect pedestrians and cyclists at rail crossings. | Identify any railroad grade crossings on documented or proposed WPPE school walk routes. FOIA DelDOT for grade crossing inventory in school zone proximity. Check USDOT grade crossing database (FRA Highway-Rail Crossing Inventory). |
| ~Jan 2036 10 yrs from effective date |
FHWA compliance deadline: Highway Traffic Signals at or Near Grade Crossings (§8D.09–12). Table 1B-1: assessment and determination of appropriate treatment (preemption, movement prohibition, pre-signals, queue cutter signals) at signalized intersections within 200 feet of railroad grade crossings. 10-year window. | DE MUTCD 2026, Table 1B-1, §8D.09–12. Confirmed from de-mutcd-2026.txt. Effective date = January 2026 → compliance by ~January 2036. |
High relevance for bus-rail equity. DE MUTCD Part 8 §8D.09 (confirmed from de-mutcd-part8-railroad.txt): if a signalized intersection is within 200 feet of a rail grade crossing, preemption assessment is required. School bus routes crossing rail lines near signalized intersections must be assessed. Also: DE Part 8 Title 21 §4163 (DE Revision): school buses carrying students are NOT required to stop at rail grade crossings controlled by traffic signals — different from federal CMV rule. This is an equity gap if signal timing isn't designed for pedestrian safety near the crossing. |
FOIA DelDOT for: (1) list of all signalized intersections within 200 feet of railroad grade crossings in Newark, DE; (2) any preemption assessments already completed; (3) school bus route maps showing rail crossings. Cross-reference Title 21 §4163 with actual signal timing data at rail crossings on WPPE/NCS bus routes. |